Hot water generatoe



(N0 Model.) 2 Sheets-Sheet 1.

A.J.PULVB`R. HOT WATER GENERATOR.

No. 552,698. r n Patented Jan. 7, 1896.

` i x' u Il f I n. Il: q a

(No Model.) 2 Sheets-Sheet 2.

A. J. PULVER.

'HOT WATER GENERATOR.

No. 552,698. Patented Jam. '7, 1896. Y

Miren STATES ATENT `irren..

ANDREV JACKSON PULVER, OF NORVALK, OHIO, ASSIGNOR OF ONE-THIRD TO FRANK J. HERMAN, OF SAME PLAGE.

HOT-WATER `G EN ERATO R.

SPECIFICATION forming part of Letters Patent No. 552,698, dated January 7, 1896.

l Application tiled June 29, 1895. Serial No. 554,482. (No model.)

To 'c1/ZZ whom t may concern:

Be it known that I, ANDREW JACKSON PULVER, a citizen of the United States, residing at Norwalk, in the county of Huron and State of Ohio, have invented a new and useful Hot-Vater Generator, of which the following is a specification.V

The present invention relates to certain new and useful improvements in hot-water boilers, whereby an increased circulation and heat-radiating surface is attained at the expenditure of a minimum amount of fuel, and which at the same time will combine simplicity of construction with compactness of arrangement. 1

The improvement consists primarily of a boiler comprising similar top and side sections, each composed of end manifolds, a series of water-tubes, and concentric caliducts extending through the water-tubes and manifolds, said sections being connected together and in communication, whereby a circulation is secured therethrough.

The improvement also consists of the novel features and the peculiar construction and disposition of the parts which hereinafter will be more fully set forth and claimed, and which are illustrated in the accompanying drawings, in which- Figure l is a perspective view of the boiler as it will appear when set up prior to being incased by the usual masonry. Fig. 2 is a top plan view thereof with the top section removed. Fig. 3 is a front elevation of the boiler, showing the front plate in position and the covers broken away which are provided to close the ends of the caliducts. Fig. 4: is a side elevation of a section, partly in section.

rJlhe top and side sections are similarlyconstructed and comprise end manifolds l and a series of longitudinally-disposed water-tubes 2 connecting the said manifolds and having caliducts 3 extending therethrough and through the manifolds and forming watertight joints at their' extremities with the outer walls of the said manifolds. The side sections 4 are arranged in vertical relation upon Va base 5 and have nipples or stub-tubes 6 at their upper ends, by means of which connection and communication is had between the said side sections and the top section 7. These nipples or stub-tubes 6 are `rolled or swaged into the sides of the registering openings provided in the adjacent manifolds, whereby a water-tight joint and a positive connection are secured. The water-tubes and the caliducts are connected with the manifolds in a similar manner, thereby obviating any screwjoints, which are objectionable in the construction of this class of devices.

Inlet or return pipes 8 have communication with the lower portions of the front vertical manifolds, and corresponding pipes 9 communicate with the rear horizontal manifold and may run together or extend in separate lines to the required points for utilizing the hot water. In order to attain an equalization of the circulation between the side sections, the front manifolds are connected by a transverse pipe l0 and the rear manifolds by a like transverse pipe ll, which pipes have their ends secured to the walls of the manifolds by rolled or swaged joints in the usual manner.

The water-tubes 2 are connected to the adjacent walls of the end manifolds and do not extend through the latter, whereas lthe caliducts are of smaller diameter than the watertubes and extend through the latter and through the manifolds, and have connection at their outer ends to Vthe outer walls of the said manifolds in any convenient manner, preferably by means of bushings 12, which are rolled or swagedinto openings formed in the manifolds and which in turn have the ends of the caliducts swaged or rolled therein, thereby providing firm and water-tight joints. A dimidiate trigonal deiiecting wall is located at the rear of the combustion-chamber, and is adapted to cause an outward circulation of the heated air so as to insure a proper heating of the inner or rear manifolds and a return of the smoke and gases through the caliducts. This trigonal deflecting wall is formed of metal plates which are arranged substantially as shown, and which have the space inclosed thereby filled in with masonry so as to provide a substantial structure for the desired purpose.

The ash-pit 13 and the grate i4. are located below the base 5, and the latter may be of any suitable material so as to provide a substantial support for the boiler-sections- It will be understood that the boiler after being assem- IOO bled Will be closed in by masonry in the usual manner, said masonrybeing so disposed as to leave ail space between its sides and'ithe opposing sides of the sections comprising the boiler, whereby a free circulation of the heated air and gases is attained.

rllhe front and back are constructed substantially alike and are of a size to cover the front and the back of the boiler when in proper position, and being of similar construction a detailed description of one will be sufficient. The front 15 has side openings 16 which registei-Withthe front manifolds, and atop opening 17 in register with the front horizontalmanifold. These several openings 1G and 17 are normally closed by removable covers 18, by means of'Which access is readily had to the caliducts for cleaning, repairing, and any required purpose. These covers 18 are retained in place by any, suitable means, and are adapted to be liftedor slid to one side as found most convenient.

It'Will be seen that a boiler of the construction herein set forth is composed solely of manifolds and Water-tubes. Hence an extended surface is presented both for the heat and the Water, thereby utilizing the fuelto the best possible advantage. The Water enters the lower portionof the side sections and after circulating through the latter and the top section escapes by means ofv the pipes leading fromthe rear manifoldof the said top sections, and by this means a thorough heating of the Water is attained in its circulation through the several sections and the component parts thereof.

The invention may be applied to different styles andmakes of boilers. Therefore it is to be understood, that changes in the form, proportion, and the minor details of construction may be resorted to Without departing from the principle or sacrificing anyy of the ad van- .tages of this invention.

Having thus described the invention, what is claimed as new is 1. A` boiler of the character described, formed of similarly constructed top and side sections arranged to inclose a combustion chamber and communicating at their contiguous ends, each section com posedof continu ous end manifolds, a series of longitudinal Water tubesiitted to and connectedat their ends to the inner or opposing Walls of the opposite and corresponding manifolds, and caliducts eX- tending through the Water tubes and the manifolds and secured at their ends to the outer Walls of the manifolds, substantially as set forth.

2. A boiler for the purposes set forth, comprising similarly constructed top and side sections disposed to inclose a combustion chamber, each formed of continuous end manifolds and'connecting W-ater tubes and caliducts, a similar front and back for closing the ends of the boiler or combustion chamber and having top and side openings corresponding in position With and approximating the size of the manifolds. of the top and side sectionsand covers removably fitted to the said openings for closing the same and admitting of ready access being had to the manifolds and caliducts, for the purposes set forth.

3. The combination with a boiler comprising a tubular top and side sections arranged to inclose a combustion chamber, of adimidiate trigonal deiectingwall arranged atthe rear end of the said combustion chamber, substantially as described for the purpose set forth.

4. The herein shown and described boiler, comprisin g similar top and side sections each composed of end manifolds in communication, a series ofv longitudinalwater tubes andV concentric caliducts, transverse pipes connecting the vertical manifoldsa .front and back provided With top and side openings in register with the top-andside manifolds, removable covers for closing the said openings in the front and back, and a dimidiate trigoynal delecting wall disposed in the rear of the i combustion chamber formed'by the top and .side sections, substantially as described for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto aiiiXed my signature in the presence of two Witnesses.

ANDRENV JACKSON PULVER. Witnesses:

WM. R. MERns, WILLIAM S. BAYLEY. 

